# CVE-2026-121559: GLPI 10.0.0 before 10.0.28 and 11.0.0 before 11.0.10 Privilege Escalation via User Cloning

Status: published. Published: 2026-11-03. Updated: 2026-11-03.

GLPI 10.0.0 before 10.0.28 and 11.0.0 before 11.0.10 contains a privilege escalation vulnerability that allows authenticated users to obtain elevated profiles by cloning accounts. A user with the Technician profile can clone a Super-Admin account with a new login and password, since User::getCloneRelations() copies every Profile_User and Group_User assignment without permission checks, yielding an attacker-controlled Super-Admin account.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/glpi-project/glpi/commit/10a827c8c1868a0a65ab977d30878ff16547d9a7
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/glpi-project/glpi/commit/d30faa501e8b549ae507615b05e7d99dacfe5d98

## Affected products and versions

- glpi-project / GLPI (glpi-project/glpi): ≥ 10.0.0; < 10.0.28 (affected, semver); ≥ 11.0.0; < 11.0.10 (affected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 8.6 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 7.2 (high); CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H; source: CNA: VulnCheck

- CVSS 4.0: 8.6 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X; source: NVD: disclosure@vulncheck.com

- CVSS 3.1: 7.2 (high); CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H; source: NVD: disclosure@vulncheck.com

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: exploitation none; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-269

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/glpi-project/glpi/security/advisories/GHSA-c46f-4v9j-5gpc (CNA: VulnCheck; vendor-advisory)

- https://github.com/glpi-project/glpi/commit/10a827c8c1868a0a65ab977d30878ff16547d9a7 (CNA: VulnCheck; patch)

- https://github.com/glpi-project/glpi/commit/d30faa501e8b549ae507615b05e7d99dacfe5d98 (CNA: VulnCheck; patch)

- https://www.vulncheck.com/advisories/glpi-10.0.0-before-10.0.28-and-11.0.0-before-11.0.10-privilege-escalation-via-user-cloning (CNA: VulnCheck; third-party-advisory)

- https://github.com/glpi-project/glpi/commit/10a827c8c1868a0a65ab977d30878ff16547d9a7 (disclosure@vulncheck.com)

- https://github.com/glpi-project/glpi/commit/d30faa501e8b549ae507615b05e7d99dacfe5d98 (disclosure@vulncheck.com)

- https://github.com/glpi-project/glpi/security/advisories/GHSA-c46f-4v9j-5gpc (disclosure@vulncheck.com)

- https://www.vulncheck.com/advisories/glpi-10.0.0-before-10.0.28-and-11.0.0-before-11.0.10-privilege-escalation-via-user-cloning (disclosure@vulncheck.com)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-121559; retrieved 2026-11-03; source updated 2026-11-03

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-121559; retrieved 2026-11-03; source updated 2026-11-03

Revision: 8fc8a00e24750d5253944118a8995cce9dacf8333c94474b61fd4a2ab9c8a7eb

Canonical: https://y2.dev/cve/CVE-2026-121559

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